Monthly Archives: February 2015

After battling the rain the previous Sunday at Mt Stromlo, I looked forward to this activation at Spring Hill.

I was encouraged by the contacts made from Mt Stromlo on vhf bands and on 23cm so I wanted to try that again from Spring Hill, which is a few km north of Hall on the Northern edge of the ACT.

Access to the site needs to be arranged beforehand. I had texted the owner Phil but had not received a reply so before entering the land I phoned him to check. He said he had seen my text, there was no problem and he wished me a pleasant walk. I think in the past I have spoken to him several days prior to the site visit, then as requested I have texted him to let him know I was on the hill.

At the road level there was a very mild breeze, but the further I climbed the higher the wind became. When I reached the point where the track is exposed to the east the wind blew my hat off and continued to rise. At the top it was hard to stand up so I decided to operate from the lee side of the compound where there was some concrete and a steel mesh fence and almost no wind, though the acoustic noise created by the wind on the tower and dishes was quite loud.

The vhf and UHF antennas went up first and I made contacts on 50, 144, 432 and 1294 fm. I didn’t make enough contacts on 1294 to qualify the summit but the contact down south to Jayson vk1ja was a good distance and signal levels were quite good. The mobile whip worked well in horizontal mode. S2S contacts were made on 52, 146 and 439 MHz with Andrew VK1NAM on Mt Majura.

For 50/52 MHz I used a wire dipole supported by the squid pole. Later I took that antenna down and set up the 40m antenna to make a handful of contacts before I had to pack up and head back down. I closed down at 8pm 0900 UTC, took about 10mins to pack the gear and arrived back at the car at about 8:50.

The track is steep in sections and has many loose rocks, making the downhill walk quite slow and tricky. Anyone planning to walk down in the dark needs a headlamp for safety.

After battling the rain the previous Sunday at Mt Stromlo, I looked forward to this activation at Spring Hill.

I was encouraged by the contacts made from Mt Stromlo on vhf bands and on 23cm so I wanted to try that again from Spring Hill, which is a few km north of Hall on the Northern edge of the ACT.

Access to the site needs to be arranged beforehand. I had texted the owner Phil but had not received a reply so before entering the land I phoned him to check. He said he had seen my text, there was no problem and he wished me a pleasant walk. I think in the past I have spoken to him several days prior to the site visit, then as requested I have texted him to let him know I was on the hill.

At the road level there was a very mild breeze, but the further I climbed the higher the wind became. When I reached the point where the track is exposed to the east the wind blew my hat off and continued to rise. At the top it was hard to stand up so I decided to operate from the lee side of the compound where there was some concrete and a steel mesh fence and almost no wind, though the acoustic noise created by the wind on the tower and dishes was quite loud.

The vhf and UHF antennas went up first and I made contacts on 50, 144, 432 and 1294 fm. I didn’t make enough contacts on 1294 to qualify the summit but the contact down south to Jayson vk1ja was a good distance and signal levels were quite good. The mobile whip worked well in horizontal mode. S2S contacts were made on 52, 146 and 439 MHz with Andrew VK1NAM on Mt Majura.

For 50/52 MHz I used a wire dipole supported by the squid pole. Later I took that antenna down and set up the 40m antenna to make a handful of contacts before I had to pack up and head back down. I closed down at 8pm 0900 UTC, took about 10mins to pack the gear and arrived back at the car at about 8:50.

The track is steep in sections and has many loose rocks, making the downhill walk quite slow and tricky. Anyone planning to walk down in the dark needs a headlamp for safety.

In 2014 the VK1 SOTA group proposed a BBQ and joint activation at Mt Stromlo on 1st Feb, to celebrate the first anniversary of SOTA in VK1. On the day the weather was very hot and the event was called off.

This year the group again decided to have a BBQ at Mt Stromlo, with a joint activation to provide contacts with the summit. The plan was to have either a lunch or evening BBQ and set up a few antennas to allow the group to make radio contacts.

Towards the weekend, it was clear the weather this year was not going to be hot, instead it was likely to rain during the afternoon. Several of the group were unable to make it due to conflicting social engagements so the remaining hopefuls decided to make it a 4pm start and hope for the best re the weather. That turned out to be a mistake as the weather was moderately clear during the day but towards 4pm it looked more like rain every minute.

23cm band

I had borrowed a 23cm fm mobile rig from Compton VK2HRX who was keen to get chaser points for 23cm and was visiting Canberra that day. So I wanted to make at least a few contacts on 2m FM and on 23cm FM. On 23cm the simplex frequency is 1294.0 MHz.

I arrived on the mountain earlier than 4pm and spoke with Paul VK1ATP on 2m FM soon after. Simon VK1FAAS emailed the VK1 SOTA group suggesting it looked like a cancellation was going to be necessary and I agreed with that as the weather certainly did not support the event we had hoped for. However after some initial thunder and rain visible to the south, it appeared that the main body of rain had passed us by, so I decided to set up the 23cm antenna and the borrowed 23cm fm radio. Paul had arrived on summit by then and was able to observe the 23cm contacts.

After making 3 contacts on 23cm I was looking for a 4th contact so as to qualify the summit on that band. I monitored 2m fm in the hope that someone would call me there offering a contact on 23cm.

HF contacts

With the rain apparently having passed and no apparent imminent thunderstorm, I decided to put up the HF antenna and see how badly the bands were affected by the nearby storms. At this point Paul was tempted to do likewise, but after considering his wife and kids he decided against this and departed, wishing me well on HF.

Once I got the antenna up, 40m sounded ok and after I fixed my antenna (again), prompted by Matt 1MA who thought I was not strong enough at his location about 10 km away, I made 19 contacts on 40m including an S2S (summit to summit) contact with Kevin VK3KAB and Glenn VK3YY. During this period the rain started in earnest and I covered myself as well as the radios with a second tarp. Weird sitting in the rain under tarps talking on the radio. Why didn’t I take a tent…

The radios under the tarp. The logbook with wet pages. It was only just legible the next day for typing up the log.

20m and 12m, ssb and cw

Running out of contacts on 40m I then decided to look at 20m and higher bands. At this point I also decided to send an email to the VK1 mailing list asking (begging) for anyone with 23cm gear to call me on 146.5 as I wanted a 4th contact on 23cm.

Having moved the HF antenna to 20m by disconnecting the two links I spotted myself on 14.310 and called cq, which resulted in 3 contacts into South Australia (VK5). I did not receive further replies so I looked higher in frequency. On 24.9 MHz I heard a strong KH6 (Hawaii) calling CQ on CW and I thought I should at least try a contact. I received a good (579) report from the KH6 which was great as the antenna was still linked for 20m.

The 4th contact on 23cm

Before finishing the KH6 contact I heard Jayson VK1JA calling me on 2m fm. I asked him to stand by a minute while I completed with the KH6. When I went back to Jayson he said he was receiving me well and wanted to try 23cm. We then made a good contact over about 15km to his location in Tuggeranong.

After completing with Jayson I removed the 12m link on the HF antenna and made another contact on 24.9 MHz CW with a Japanese station. These dx contacts were completely unspotted as I was answering their CQs. Their power levels were most likely at least 100 watts or 10 db more than my IC703’s 10 watts, and possibly even higher.

As an anniversary event it was a fizzer but I got some satisfaction from making the 4 contacts on 23cm and handing out some points to SOTA chasers. Also gained some S2S points from working VK3KAB and VK3YY.